Baking-oven



(No Model.) Z'Sheets-Sheet 2.

' J. H. MILLER..

BAKING OVEN.

No. 410,913. Patented Sept. l0, 1889.'v

N. PEYERS, Fholofmhegmmer. washington, n. C.

UNITED STATES PATENT OFFICE.

JOHN H. MILLER, OF NEWARK, OHIO.

1` BAKlNGOVEN.

SPECIFICATION forming part of Letters Patent No. 410,913, dated September 10, 1889.

Application iiled October 4, 1888. Serial No. 287,154. (No model.)

To all whom t may concern,-

Beit known that I, JOHN H. MILLER, a citizen of the United States, and a resident of Newark, in the county of Licking and State of Ohio, have invented certain new and useful Improvements in Baking-Ovens; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l of the drawings is a representation of a front view of this invention. Fig. 2 is a transverse sectional view. Fig. 3 is a longitudinal sectional view. Figs. 1i, 5, and 6 are details.

The invention relates to improvements in baking-ovens and furnaces; and it consists in the construction and novel combination of parts, as hereinafter set forth.

Referring to the drawings, A designates the side walls, which are preferably made of brick and having the longitudinal girders B, of T- shaped iron. The intermediate girders B are designed for the cast-iron hearth C to rest upon and form the top of the fire-place D.

E is an air-space within the furnace, to which air is admitted through pipes a a, leading through the sides and across the air-space E. These pipes are provided intermediately of their ends with a series of openings h', through which the air passes into the furnace from the outside.

The furnace is provided with a grate a', below which is the ash-pit a2. The front of the side furnace is preferably of cast-iron, having the furnace-doors A" hinged thereto. The

cast-iron front is also provided with ashpit doors A2.

F designates the ovens, of a rectangular forln, resting on chairs b, which rest upon the hearth O. The front of each oven is provided with a door O.

An iron plate or hearth G is placed upon the upper girders B2, as shown,and upon said plate I usually place sand, which retains the heat. The interspaces H between the walls of the ovens and the surrounding walls form a chamber, within which the hot air is confined.

The ovens are preferably of sheet-iron or other thin metal, and have a cast-iron front overlapping the front of the furnace-wall and to which the doors are hinged.

. I is a rectangular frame within the oven, having rollers c j ournaled therein for convenience in withdrawing the bread-pan carriage J from the oven.

The oven above described is designed to save fuel, inasmuch as the heated air in the chambers assists greatly in the baking.

Having described my iuvention,what I claim 1s- The baking-oven consisting of the furnace having the lower air-chamber containing airreceiving pipes provided with air-outlet apertures or openings intermediately of their ends, said air-receiving apertured pipes being arranged in proximity with the re or combustion chamber, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN H. MILLER.

Witnesses:

CHAs. H. FOLLETT, DAVID N. OsYoR. 

